000 00280nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aCharyulu, V. Krishnama
245 0 _aScience Projects And Experiments
260 _aNew Delhi
_bNeelkamal
_c2013
300 _a263p.
942 _cBK
999 _c15498
_d15498